So recently on Plat chat , sideshow made a comment that players like Scream , Yay and Cryo can shift to Sentinal role especially Killjoy. He defended his statement saying that these players are insane in terms of mechanics and only thing they have to do is hold 1 side of map whole their team tries to fight the other way. If the opponents team pushes these players , they can easily shut the opponent team.
I agree with him as Less ( Loud Sentinal ) I'd also a Player like his He holds passively at one side of a map and He just shoots everyone one downs who pushes him